The American two-plutocratic-party-system political corps has and needs no third principle.

And in this, if in no other way, the American two-plutocratic-party-system political corps for once truly represents the working-people it strings along and loots and sets upon one another on behalf of its owners.

You can even see it in the religion they all profess and some even believe in:

That religion doesn't preach not doing evil because it's evil, or doing good because it's good.

It preaches not doing evil because it'll be punished in "Hell" ("Cover Your Ass"), and doing good because it'll be rewarded in "Heaven" ("What's In It For Me?").

Such is the "morality" of banality, from the lowest to "the Highest", in seamless web.